Ordering Information

This is a Brown Box product and has been reviewed by our Certified Technicians to ensure the highest level of quality. Contents are complete as if factory sealed. This item is available in limited quantities while supplies last.

To see all of our available Brown Box products and other deals, visit our Clearance Center!

Push your computing boundaries with the HP Z840 Workstation that helps you keep up with your biggest projects. Built for high-end computing and visualization, it delivers outstanding performance in a highly expandable chassis.

There are sixteen slots in total, with eight slots per installed processor. Each slot contains a removable 4GB module.

Memory maximums:
With RDIMMs: 256GB
With LRDIMMs: 2048GB
NOTE: The Z840 will support up to 512GB at initial release. The Z840 will support up to 1024GB when 64GB DIMM support is added following initial Z840 release. The Z840 will support up to 2048GB when 128GB DIMM support is added following initial Z840 release.

Memory population guidelines:
Do not install memory modules into memory slots if corresponding processor is not installed.
RDIMM (Registered) and LRDIMM (Load Reduced) memory cannot be intermixed. All memory installed in the system must be either RDIMM or LRDIMM.
Only ECC DIMMs are supported.
Dual processor configurations with memory modules installed for only one processor is not supported.

Our Accessibility Policy

We endeavor to make our website accessible to any and all users. Please contact us toll-free at 800-998-4388 if you need assistance with navigating our blog, website, or placing an order. We appreciate your business and are happy to answer any questions that you may have.